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Section: 6 Minerals and pigments (MP) Page: 352

 Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
IMP00352
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Manasseite
Chemical/botanical name(s):
Hydrated carbonate with hydroxyl or halogen (class), sjogrenite (mineral group)
Sample source 1:
Jacupiranga Apatite Quarry
Source location 1:
Sao Paulo, Brazil
Sample source 2:
British Museum
Source location 2:
Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2:
BM1982,446
Sample source 3:
The Natural History Museum, National Museums of Scotland
Source location 3:
Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Color:
Orange
Other:
Dimorphous w/ hydrotalcite, distinguishable from sjogrenite, see manasseite from NO, IR2852- the spectra are almost identical despite different physical forms & association, found in alkaline ingeneous environment, may be related to chloromagaluminite
Application:
Transmission FTIR spectroscopy
Mode:
Tran
Literature Reference:
Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993.
Originating institution name:
Natural History Museum, National Museums of Scotland
Originating institution acronym:
NHM
Molecular formula:
C H24 Al2 Mg6 O27
Linear formula:
Mg6Al2(CO3)(OH)16*4H2O
Other analytical methods:
EDS (Mg:Al=approx. 3.3:2 ? with trace Fe), SEM, XRD (2886F NHM std=manasseite)